Analog Devices ADA4432-1BCP-EBZ User manual

Brand: Analog Devices

Model: ADA4432-1BCP-EBZ

Type: User manual

This manual is also suitable for

UG-425

Analog Devices ADA4432-1BCP-EBZ is a fully assembled and tested evaluation board for the ADA4432-1, a fully differential video filter amplifier offered in an 8-lead LFCSP. It enables quick customer evaluation and provides easy connection to test equipment and other circuits via edge-mounted SMA connectors. The board can be configured for single-ended or balanced input operation, and features input termination resistors, back-termination resistors, and a short-to-battery output flag function. With a single-supply voltage ranging from 2.6 V to 3.

Evaluation Board User Guide

UG-425

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

Evaluation Board for the ADA4433-1, Fully Differential Video Filter Amplifier

Offered in 8-Lead LFCSP

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 4

FEATURES

Fully assembled and tested

Enables quick customer evaluation

Edge-mounted SMA connector provisions

Easy connection to test equipment and other circuits

GENERAL DESCRIPTION

The ADA4433-1BCP-EBZ evaluation board makes it easy for

designers to quickly observe the performance of the ADA4433-1

video filter in real-world applications. Input signals are applied

through the SMA jacks (+IN, −IN), and outputs are taken from

SMA jacks (+OUT, −OUT). Power is applied through the red +VS

test point. Ground the black GND test point. The ADA4433-1

operates on a single-supply voltage ranging from 2.6 V to 3.6 V,

and draws approximately 14 mA.

The evaluation board is configured with an input termination

resistor (R1) of 75 Ω. Chose this resistor to provide the correct

termination or load for the input signal source. For example,

current-mode video digital-to-analog converter (DAC) outputs

that require a 300 Ω load resistance. In this case, replace R1 with a

300 Ω resistor.

The ADA4433-1 inputs can be driven by either a balanced or an

unbalanced source. For unbalanced signals, bias the unused input

(−IN) to approximately 0.5 V. For a 3.3 V supply, this can be achieved

by using the on-board voltage divider by setting R2 = 1.33 kΩ and

R3 = 7.5 kΩ. Populate the decoupling capacitor (C3) with 0.1 µF to

help eliminate noise.

By default, the ADA4433-1BCP-EBZ is configured for single-ended

input operation where the input signal is applied to SMA (+IN).

For a balanced input configuration, R4 provides placement for

the differential termination resistor.

The ADA4433-1BCP-EBZ evaluation board is configured to drive

a back terminated 150 Ω differential load. Series back-termination

resistors (37.5 Ω each) are installed on both outputs. These can

be changed to match the actual differential load impedance.

The ADA4433-1 can be powered down (disabled) by grounding

the green ENA test point at the top left of the evaluation board.

On the evaluation board, this pin is pulled up to +VS through

the 4.7 kΩ resistor (R7).

In normal operation, the short-to-battery output flag (STB) is

held at a logic low. During a short-to-battery fault condition (where

a voltage ranging from 5 V to 18 V is applied to either or both

outputs), the STB output voltage is driven to a logic high state. The

STB yellow test point (lower left side of the evaluation board) can

be used to monitor the short-to-battery output flag function.

Figure 1 shows the evaluation board, primary side and secondary

side. Figure 2 shows the evaluation board schematic. The printed

circuit board (PCB) layout pattern for the primary side and

secondary side are shown in Figure 3 and Figure 4.

DIGITAL PICTURE OF EVALUATION BOARD

Figure 1.

ADA4433-1BCP-EBZ Primary Side and Secondary Side of PCB

10786-001

PRIMARY SIDE

NOTES

1. THE EVALUATION BOARD SILKSCREEN PART NUMBER LABELING ON YOUR BOARD MAY BE DIFFERENT FROM WHAT IS SHOWN HERE.

SECONDARY SIDE

UG-425 Evaluation Board User Guide

Rev. 0 | Page 2 of 4

TABLE OF CONTENTS

Features .............................................................................................. 1

General Description ......................................................................... 1

Digital Picture of Evaluation Board ............................................... 1

Revision History ............................................................................... 2

Evaluation Board Schematic and Artwork .....................................3

Ordering Information .......................................................................4

Bill of Materials ..............................................................................4

REVISION HISTORY

5/12—Revision 0: Initial Version

Evaluation Board User Guide UG-425

Rev. 0 | Page 3 of 4

EVALUATION BOARD SCHEMATIC AND ARTWORK

Figure 2. ADA4433-1BCP-EBZ Evaluation Board Circuit Schematic

Figure 3. ADA4433-1BCP-EBZ Board Layout Pattern, Primary Side

Figure 4. ADA4433-1BCP-EBZ Board Layout Pattern, Secondary Side

+IN

75Ω

DNI

37.5Ω

R10

DNI

4.99kΩ

1.33kΩ

0.1µF

10µF

7.5kΩ

R11

333Ω

DNI

GND

–IN

STB

1 2 3 4

+IN ENA

ADA4433-1

GND –OUT

–IN STB +V

+OUT

6 5

–OUT

ENA

GND

+OUT

GND

10786-002

10786-003

10786-004

UG-425 Evaluation Board User Guide

Rev. 0 | Page 4 of 4

ORDERING INFORMATION

BILL OF MATERIALS

Table 1.

Quantity Reference Designator Description Package

1 U1 ADA4433-1 8-Lead LFCSP

1 +VS

Red test point loop connector TP1

3 C1, C2, C3 0.1 µF chip capacitors 0603

1 C4 10 µF chip capacitor 1206

1 ENA 2-Pin BERG connector

2 GND Black test point loop connector TP1

4 +IN, −IN, −OUT, +OUT SMA coaxial end launch connectors

1 R1 75 Ω resistor 0603

1 R2 1.33 kΩ resistor 0603

4.99 kΩ resistor

0603

1 R5 7.5 kΩ resistor 0603

2 R6, R7 37.5 Ω resistors 0603

1 R11 333 Ω resistor 0603

1 STB Yellow test point loop connector TP1

1 R4 Do not install resistors 0603

1 D1 Surface mount LED diode red 1206

2 R9, R10 Do not install resistors 1206

ESD Caution

ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection

circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.

Legal Terms and Conditions

By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions

set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you

have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of

the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.

(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,

temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided

for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the lic

ense granted is expressly made subject to the following additional

limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term

“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including

ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may

not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to

promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engi

neer chips on the Evaluation Board. Customer shall inform ADI of any

occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.

Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS

Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice

to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO

WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED

TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL

PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF

THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE

AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable

United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and const

rued in accordance with the substantive laws of the Commonwealth of

Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby

submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.